1201200615 has 48 divisors (see below), whose sum is σ = 2195462880. Its totient is φ = 605871360.

The previous prime is 1201200607. The next prime is 1201200641. The reversal of 1201200615 is 5160021021.

It is not a de Polignac number, because 1201200615 - 2³ = 1201200607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 803809 + ... + 805301.

It is an arithmetic number, because the mean of its divisors is an integer number (45738810).

Almost surely, 2^1201200615 is an apocalyptic number.

1201200615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1201200615 is a deficient number, since it is larger than the sum of its proper divisors (994262265).

1201200615 is a wasteful number, since it uses less digits than its factorization.

1201200615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1201200615 is about 34658.3412038141. The cubic root of 1201200615 is about 1063.0128521146.

Adding to 1201200615 its reverse (5160021021), we get a palindrome (6361221636).

The spelling of 1201200615 in words is "one billion, two hundred one million, two hundred thousand, six hundred fifteen".